cros: Clean up SessionStateDelegate refs in Chrome

chrome/browser/ui/ash/DEPS

Index: chrome/browser/ui/ash/DEPS
diff --git a/chrome/browser/ui/ash/DEPS b/chrome/browser/ui/ash/DEPS
index 5bc5593e2f566e5d49bec0608bdcaee9867968ef..b06716fe37c5a537a5d590a1da557f835c4fa732 100644
--- a/chrome/browser/ui/ash/DEPS
+++ b/chrome/browser/ui/ash/DEPS
@@ -7,3 +7,9 @@ include_rules = [
   "+mash/shelf/public/interfaces",
   "+media",
 ]
+specific_include_rules = {
+  # Allow ash::SessionStateDelegate for SessionStateDelegateChromeOS.
+  "session_state_delegate_chromeos\.(cc|h)": [
+    "+ash/common/session",

[sky, 2017/02/27 23:51:32]

Is this temporary?

[xiyuan, 2017/02/28 00:19:58]

Yes, the goal is to deprecate SesisonStateDelegate. No chrome side code should
access it after this CL (except SessionStateDelegateChromeOS which implements
the interface). Ash side should switch to new SessionController (will do in
another CL). This DEPS rule can be removed with SessionStateDelegateChromeOS
when no one uses SessionStateDelgate anymore.

[sky, 2017/02/28 00:51:02]

Excellent! Can you add a comment to this effect? That this is temporary, and
possibly site the bug.

[xiyuan, 2017/02/28 18:35:50]

Done.

+  ]
+}